Diagnostic information 2-17
4506-1xx
Service codes
All service errors are indicated by all lights flashing as the primary notification or code. The secondary light
pattern indicates an area or function which has the error. Tertiary codes (shown on the following pages) indicate
specific device errors. When all lights flash, double-click to see the secondary code. Double-click again
to see the tertiary code. If you double-click again, you return to the primary light pattern.
In the following example:
• The primary light pattern indicates a service error (all flashing). Double-click for more information.
• The secondary light pattern indicates a fuser or toner sensor error. Double-click for more information.
• The tertiary light pattern indicates that the fuser is below temperature when printing. If you double-click
again, the original primary light pattern will appear.
Note: If you send data to the printer and all lights flash simultaneously, and double-clicking does not
produce a secondary code, you may have a code problem. Call the next level of support.
Invalid network code The code in an internal print server
has not been programmed, or the
programmed code is not valid.
Download valid network code to the internal
print server.
Secondary light patterns—additional information (continued)
Description/
Light pattern
Meaning Action
z ✷ z
Primary pattern
Secondary pattern
Tertiary pattern
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